/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package controle.foto;

import controle.usuario.Sessao;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import persistencia.dao.AbstractDAO;
import persistencia.objetos.Fotos;
import persistencia.objetos.Usuarios;
import utils.Mensagen;

/**
 *
 * @author Administrador
 */
public class ServletTrocarFotoUsuario extends HttpServlet {

    /** 
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        
        ServletContext context;
        RequestDispatcher despachante;
        
        try {

            String endereco = request.getParameter("buttonFile");

            Fotos foto = new Fotos(endereco);
            Usuarios user = Sessao.getUserRegistrado(request.getSession());

            //Cadastra a nova foto no bd
            new AbstractDAO().cadastrar(foto);

            //Seta a nova foto do usuario no bd
            int idFotoAntiga = user.getFotos().getIdFoto();
            int idFotoNova = new AbstractDAO().getMaxID("Fotos", "idFoto");
            user.setFotos(foto);
            new AbstractDAO().alterar(user);


            //Exclui a foto antiga do usuario no bd
            if (idFotoAntiga != 1) {
                new AbstractDAO().excluir(idFotoAntiga);
            }

            //Verifica se a foto do usuario foi alterada
            Usuarios user2 = (Usuarios) new AbstractDAO().consultar("Usuarios", "idUsuario=" + user.getIdUsuario()).get(0);
            if (user2.getFotos().getIdFoto() == idFotoNova) {
                request.setAttribute("mensagem", Mensagen.Alert("Imagem alterada com sucesso!"));
            } else {
                request.setAttribute("mensagem", Mensagen.Alert("Erro ao alterar a imagem!"));
            }

            String url = "WebSistem/ServletPerfilUsuario";

            context = getServletContext();
            despachante = context.getRequestDispatcher(url);
            despachante.forward(request, response);


        } finally {
            out.close();
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
